79280840

素因数分解:

$2^3\times 5^1\times {\mathrm{1982021}}^1$

素因数の和:1982032

約数の個数: 16

約数和(自身を含む): 178381980

約数和(自身を除く): 99101140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1982021, 3964042, 7928084, 9910105, 15856168, 19820210, 39640420, 79280840]

約数ペア:

[(1, 79280840), (2, 39640420), (4, 19820210), (5, 15856168), (8, 9910105), (10, 7928084), (20, 3964042), (40, 1982021)]